// ConsoleTools
// Copyright (C) 2017-2024 Dust in the Wind
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// --------------------------------------------------------------------------------
// Bugs or feature requests
// --------------------------------------------------------------------------------
// Note: For any bug or feature request please add a new issue on GitHub: https://github.com/lastunicorn/ConsoleTools/issues/new/choose

using System.Collections.Generic;

namespace DustInTheWind.ConsoleTools.Mvc;

public class Arguments
{
    public string Command { get; }

    public List<Argument> Values { get; } = new();

    public int Count => Values.Count;

    public string this[int index] => Values[index]?.Value ?? Values[index]?.Name;

    public Arguments(IReadOnlyList<string> args)
    {
        if (args == null || args.Count == 0)
            return;

        Command = args[0];

        string previousName = null;

        for (int i = 1; i < args.Count; i++)
        {
            string arg = args[i];

            if (arg == null)
                continue;

            bool isNewArgument = arg.StartsWith("-");

            if (isNewArgument)
            {
                if (previousName != null)
                    Values.Add(new Argument(previousName, null));

                previousName = arg.TrimStart('-');
            }
            else
            {
                if (previousName != null)
                {
                    Values.Add(new Argument(previousName, arg));

                    previousName = null;
                }
                else
                {
                    Values.Add(new Argument(arg, null));
                }
            }
        }
    }
}